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Add -Zcross-crate-inline-threshold=yes

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This commit is contained in:
Ben Kimock 2023-11-06 19:55:05 -05:00
parent aea82b268a
commit fcdd99edca
10 changed files with 161 additions and 13 deletions
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10
compiler/rustc_mir_transform/src/cross_crate_inline.rs
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@ -7,6 +7,7 @@ use rustc_middle::mir::visit::Visitor;
use rustc_middle::mir::*;
use rustc_middle::query::Providers;
use rustc_middle::ty::TyCtxt;
use rustc_session::config::InliningThreshold;
use rustc_session::config::OptLevel;
pub fn provide(providers: &mut Providers) {
@ -54,6 +55,12 @@ fn cross_crate_inlinable(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
return false;
}
let threshold = match tcx.sess.opts.unstable_opts.cross_crate_inline_threshold {
InliningThreshold::Always => return true,
InliningThreshold::Sometimes(threshold) => threshold,
InliningThreshold::Never => return false,
};
let mir = tcx.optimized_mir(def_id);
let mut checker =
CostChecker { tcx, callee_body: mir, calls: 0, statements: 0, landing_pads: 0, resumes: 0 };
@ -61,8 +68,7 @@ fn cross_crate_inlinable(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
checker.calls == 0
&& checker.resumes == 0
&& checker.landing_pads == 0
&& checker.statements
<= tcx.sess.opts.unstable_opts.cross_crate_inline_threshold.unwrap_or(100)
&& checker.statements <= threshold
}
struct CostChecker<'b, 'tcx> {